欧路词典 | 您所在的位置:网站首页 › 胶水热膨胀系数怎么算 › 欧路词典 |
For lack of the theoretical calculation method at present,the skew bridge backwater is simulated in adopting circle pier and embank uncompressing river through hydraulic models. 桥梁建设多在天然河道进行,当桥墩阻水面积占河道过水面积的比例较小 |
CopyRight 2018-2019 实验室设备网 版权所有 |